How to Identify Fangtooth

To identify Fangtooth (Anoplogaster cornuta), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Adults are uniformly dark brown to black. Juveniles are lighter, often greyish-brown.

Scale type

none

Mouth position

terminal

Distinctive features

Extremely large, fang-like teeth, particularly the two lower fangs which are so long they fit into sheaths on either side of the brain when the mouth is closed., Large head with a short snout., Small, lidless eyes., Rough, spiny skin covered in small, plate-like scales (osteoderms) in adults., Lack of photophores (light-producing organs) in adults, though juveniles may possess them.

Dorsal fin

Single dorsal fin, relatively short, located towards the posterior half of the body.

Tail fin

Caudal fin is small and forked.

Pectoral fin

Pectoral fins are small and rounded.

Distinctive fins

Pelvic fins are small and located abdominally. All fins are generally dark-colored.

Identification Tips

1. 1

   Teeth

   The most striking feature is the two prominent, elongated fangs on the lower jaw that are so long they extend past the upper jaw and fit into specialized sockets in the roof of the mouth, adjacent to the brain. These are visible even when the mouth is closed.

2. 2

   Body Coloration

   Adults are uniformly dark brown to black, providing camouflage in the deep, dark ocean. Juveniles are lighter, often greyish-brown.

3. 3

   Head Size

   Possesses a disproportionately large head relative to its body size.

4. 4

   Skin Texture

   Adults have rough, spiny skin due to embedded osteoderms, giving them a 'warty' appearance.

5. 5

   Size

   Despite its fearsome appearance, it is a relatively small fish, rarely exceeding 18 cm (7 inches) in total length.

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